Yes, the process of increasing the mesh resolution without changing anything else is called "Sub-D" (from subdivide). The software literally splits each quad into 4 smaller quads (quadrupling the number of faces) for each level of sub-d.
In Daz, you control the SubD settings on any object in the scene with the controls on the Parameters->Mesh Resolution tab.
IN this example, i've got the same object twice.
First one at Resolution Level "base resolution", with SubD = 0.
Second is at Resolution Level "High resolution", with SubD = 2.
Then i used meshgrabber to stretch a face out. You can see how much smoother the curve surface is on the subD = 2 object.
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